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D000284:Administration, Oral; D001682:Biological Availability; D048909:Diabetes Complications; D004311:Double-Blind Method; D007172:Erectile Dysfunction / Q000145:classification / Q000188:drug therapy* / Q000209:etiology; D006801:Humans; D007093:Imidazoles / Q000493:pharmacokinetics / Q000494:pharmacology / Q000627:therapeutic use; D008297:Male; D010879:Piperazines / Q000493:pharmacokinetics / Q000494:pharmacology / Q000627:therapeutic use; D016032:Randomized Controlled Trials as Topic; D012720:Severity of Illness Index; D013450:Sulfones; D011795:Surveys and Questionnaires; D016896:Treatment Outcome; D014227:Triazines; D000069058:Vardenafil Dihydrochloride
D007093:Imidazoles; D010879:Piperazines; D013450:Sulfones; D014227:Triazines; D000069058:Vardenafil Dihydrochloride